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Heritability

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heritability
a measure of the degree to which the total phenotype variance is the result of genetic differences and thus can be influenced by selection
Source: Jenkins, John B. 1990. Human Genetics, 2nd Edition. New York: Harper & Row ...

 


Heritability The extent to which a trait is genetically determined.

Heritability
Variability in polygenic traits can result from genetics and also from the environment. A measure of the relative contribution of genetics is called heritability.

[edit] Heritability
Aggression, as well as other behavioral traits, is studied genetically based on its heritability through generations.

Heritability
H#178;. The proportion of total phenotypic variance at the population level that is contributed by genetic variance (also called heritability in the broad sense).

Heritability
- A measure of resemblance between relatives. In the broad sense,
Histone ...

heritability (in the narrow sense)A measure of the extent to which genes inherited from parents determine phenotypes; defined as the ratio of the additive genetic variance to total phenotypic variance; also called realized heritability.

If the offspring of selected parents occupy the same range as the entire population, environmental factors are working alone. The trait has a zero heritability.

Heritability of Cognitive Abilities in Adult Twins: Comparison of Minnesota and Swedish Data, 25 Behavior Genetics 421, 430 (1995) (estimating that cognition in early and middle adulthood has a heritability factor of approximately 81%); Petrill et.

Genomic imprinting (which is "epigenetic") constitutes heritability that is not coded in DNA. Evolution is prevalent also in viruses, although these are not considered to be organisms. The genetic material in viruses may consist of DNA or RNA.

See also: Trait, Organ, Environment, Population, Human

Biology HeredityHermaphrodite

 
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